#include <bits/stdc++.h>
using namespace std;
double n;
int main() {
    cin >> n;

    double t1 = 27 + 23 + n / 3;
    double t2 = n / 1.2;

    if (t1 < t2)
        cout << "Bike";
    else if (t2 < t1)
        cout << "Walk";
    else
        cout << "All";

    return 0;
}
